created internally with the manual closing going through the synchrocheckfunction. An example of lock-out logic.Lock-outRXMD1111221MAIN ZAK CLOSE CLOSE COMMANDSMBOORSMBRRECORCCRBRFBU-TRIPZCVPSOF-TRIP INHIBITUNSUCCLTRBUIEC05000315-4-en.vsdIEC05000315-WMF V4 EN-USFigure 103: Lock-out arranged with an external lock-out relayCLOSE COMMANDORSMBRRECORCCRBRFBU-TRIPZCVPSOF-TRIP INHIBITUNSUCCLTRBUSMPPTRCANDRESET LOCK-OUTORORSESRSYNFunctional key,SOFTWAREOR IO RESETMANSYOKMAN CLOSESMBRREC CLOSECLLKOUTRSTLKOUTSETLKOUTIEC05 000 316-4-en.vsdxSMBOMANENOKIEC05000316-WMF V4 EN-USFigure 104: Lock-out arranged with internal logic with manual closing goingthrough in IED12.2.2.20 Evolving fault M12391-217 v4An evolving fault starts as a single-phase fault which leads to single-phase trippingand then the fault spreads to another phase. The second fault is then cleared bythree-phase tripping.The auto recloser will first receive a start signal (START) without any three-phasesignal (TR3P). The auto recloser will start a single-phase auto reclosing sequence,if programmed to do so. At the evolving fault clearance there will be a new STARTsignal and three-phase trip information, TR3P. The single-phase auto reclosingsequence will then be stopped, and instead the timer, t1 3Ph, for three-phase autoSection 12 1MRK 505 393-UEN BControl240 Line differential protection RED650 2.2 IECApplication manual
